多変量ARモデルによる船体運動と漁具との関係について

概要

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The authors have considered that the variations of a warp tension in trawl fishing by a stern trawler are due to 6 degrees of freedom motions of a ship in a seaway and its influence on the formation of trawl nets during fishing operations. The authors described and discussed about this problem, using the statistical analysis of a ship's motions and the variations of warp tensions as stationary time series, up to this time. In this paper, the authors studied about the above mentioned relation by the analysis of a Multi-variate AR model method, by the use of AKAIKE's method and his program packages. As to the dynamical system of the ship's motions and warp tensions, the authors assumed the multi-variate model as follows ; [numerical formula] According to the above defined model, the authors applied this analysis to the measured data in trawl fishing on board the Oshoro Maru and the calculations were made on power spectra, cross spectra, partial and multi coherency and power contribution parameters and the results are shown in the paper and discussed. As to the results of the analysis, it was ascertained that the most part of the variations of warp tensions are due to 6 degrees of freedom motions of a fishing boat.
社団法人日本航海学会の論文
1976-01-20